Internal-combustion engine.



C. DIETZE.

INTERNAL COMBUSTION ENGINE.

APPLICATION FiLED JULY 8.1915- 1,25%,Q32 Patented Jan.'22, 1918.

I To all whom it may camera:

i it this .'DIESEL EEGINE COMPANY, 0ft? WE. LQUIS, MESSOUBI, A CGEPOBATEON U11 llHfiSUUEI,

FEITERNAL-CGEBUSTIGE EN G111 E.

Application area July a, rare. Serial in. as,

Be it known that I, CARL Burns, a citizen of the "Empire of Germany, residing at Winterthur, Canton of Zurich, Switzerland, have invented the following described improvements in Internal-Combustion lire gines,

T he invention is an improvement in internal combustion engines wherein the cylinders are arranged in V relation, and the object is to provide a simple and efiective form of device for regulating the operation of the valves of the cylinders at both sides simulta-= neously and similarly. To this end a common regulating shaft is provided and connected up with the cam rolls of the valve organs at opposite sides in such manner by turning the regulating shaft the said rolls are shifted in similar sense relatively to the cam' shaft thereby varying the time,

duration or extent of opening of the valves for difierent loads.

In the drawings forming part hereof:

Figure 1, is a sectional end elevation of a motor of the type referred to; and

Fig. 2 is a fragmentary side elevation showing the cam and regulating shafts and linkage.

The letters d and e designate two. cylinders arranged in the form'of a V. It will be understood that these may be theend cylinders of two rows of cylinders, constituting a multicylinder engine. A. common cam shaft (1 bearing cams b and o is disposed Valve rods h and i are located longitudinally and at'the inner sides of the cylinders, their upper ends hcting upon valves, not

shown, in any well known or appropriate manner. The valves in question may be fuel, air, starting or exhaust valves, and the operation and regulation of any or all of these is contemplated by the invention.

The lower ends of the valve rods are pivoted to slides or cross-heads m and n, and to these in turn are pivoted links'lc and Z, which bear cam rolls f and g. The engagement of these cam rolls by. the cams produces longitudinal displacement of the valve rods,

1'' .s. 1 i a 1 rite, a ree thereby unseating the valves, and by swinging the links relatively to the cam shaft the extent to which the rolls intersect the path of the earns, and therefore the extent of valve opening, the time at which opening takes place, and also the duration, may be varied. With the links is and Z in the radial positions shown in full lines the extent and duration of opening are maximum. By shifting the links to one side or the other these factors are decreased and the time'of opening is also changed. The direction of movement of the links will depend upon the direction of revolution of the cam shaft, as will be well understood.

A common regulating shaft 0 is disposed lengthwise over the cam shaft, and between the rows of cylinders. For each pair of earn rolls the regulating shaft is provided either with a single downward projecting arm 9 or two arms 10, g, the latter being preferably disposed one directly behind and in alinernent with the other. This arm, or these arms, are connected with the linlrs in, Z, hearing the cam rolls, by reversely extending links 8, t. As shown, the arm or arms are preferably inclined somewhat to one side of center, when the links ie and Z are radial, and the links 8 and t are of unequal length, in order that the movements of the cam rolls relatively to the cam shaft may be approximately the same;

The regulating shaft may be turned by hand, or by a governor r acting through an arm '11).

I claim:

I. An internal combustion engine having its cylinders arranged in V relation with an intermediate-common cam shaft, valve rods having cam rolls acted upon by the cams of the cam shaft and movable transversely with respect to the cam shaft and valve rods, a common regulating shaft'over the cam shaft and between thecylinders and means connecting the regulating shaft with the cam rolls at both sides to shift the same in similar sense relative to the cam shaft.

2. An internal combustion engine having its cylinders arranged in V relation with an intermediate ommon shaft, valve rods disposed in relation similar to that of the cylinders, and links pivoted to 7 valve rods and bearing cam rolls, in (70111.: ination wi h a common regulating shaft provided with arms located over the care. shaft,

are

l 5 3. In an internal combustion engine, the

combination of cylinders arranged in V relation, a common intermediate cam shaft, valve rods having cam rolls, a common regulating shaft and connections whereby turning of said regulating shaft shifts the cam 10 rolls at opposite sides in similar sense re1atively to the cam shaft.

In testimony whereof l have signed this specification in the presence of two witnesses.

, CARL DIETZE.

Witnesses:

CARL GUBLER, BERTHA C. GROLE.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of I'atents.

v Washington, D. 03 

